Q622
A single fixed pulley is used to draw water from a well because
A.
Efficiency is 100%
B.
Velocity ratio is low
C.
Mechanical advantage is high
D.
Force is applied in a convenient direction
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
A single fixed pulley is used to draw a bucket of water from a well. It is easy to draw from a well using a pulley because it helps in changing the direction of the force applied. This, in turn, makes it easy to move the object. In this case, the pulley helps in lifting the bucket full of water upwards.